“<a href="https://dl.acm.org/doi/10.1145/1375581.1375591">Foundations of the C++ Concurrency Memory Model</a>”,
published in PLDI 2008.
The definition of data-race-free programs and the guarantee of sequential consistency
for race-free programs are equivalent to the ones in that work.
</p>

<p>
The memory model describes the requirements on program executions,
which are made up of goroutine executions,

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## Agregar expresiones regulares { #add-regular-expressions }

Puedes definir un <abbr title="Una expresión regular, regex o regexp es una secuencia de caracteres que define un patrón de búsqueda para strings.">expresión regular</abbr> `pattern` que el parámetro debe coincidir:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

## `async` ve `await`

Python'un modern sürümleri, asenkron kodu tanımlamanın çok sezgisel bir yoluna sahiptir. Bu, normal "sequentıal" (sıralı) kod gibi görünmesini ve doğru anlarda sizin için "awaıt" ile bekleme yapmasını sağlar.

## Adicione expressões regulares { #add-regular-expressions }

Você pode definir um `pattern` de <abbr title="Uma expressão regular, regex ou regexp é uma sequência de caracteres que define um padrão de busca para strings.">expressão regular</abbr> que o parâmetro deve corresponder:

{* ../../docs_src/query_params_str_validations/tutorial004_an_py310.py hl[11] *}

// license that can be found in the LICENSE file.

package tar

import (
	"errors"
	"fmt"
	"io"
	"io/fs"
	"maps"
	"path"
	"slices"
	"strings"
	"time"
)

// Writer provides sequential writing of a tar archive.
// [Writer.WriteHeader] begins a new file with the provided [Header],
// and then Writer can be treated as an io.Writer to supply that file's data.
type Writer struct {
	w    io.Writer

// license that can be found in the LICENSE file.

package tar

import (
	"bytes"
	"io"
	"path/filepath"
	"strconv"
	"strings"
	"time"
)

// Reader provides sequential access to the contents of a tar archive.
// Reader.Next advances to the next file in the archive (including the first),
// and then Reader can be treated as an io.Reader to access the file's data.
type Reader struct {

    return (fromList instanceof RandomAccess)
        ? new TransformingRandomAccessList<>(fromList, function)
        : new TransformingSequentialList<>(fromList, function);
  }

  /**
   * Implementation of a sequential transforming list.
   *
   * @see Lists#transform
   */
  private static final class TransformingSequentialList<
          F extends @Nullable Object, T extends @Nullable Object>

    # Do some asynchronous stuff to create the burgers
    return burgers
```

...而不是 `def`:

```Python hl_lines="2"
# This is not asynchronous
def get_sequential_burgers(number: int):
    # Do some sequential stuff to create the burgers
    return burgers
```

使用 `async def`，Python 就知道在该函数中，它将遇上 `await`，并且它可以"暂停" ⏸ 执行该函数，直至执行其他操作 🔀 后回来。

当你想调用一个 `async def` 函数时，你必须"等待"它。因此，这不会起作用：

```Python

    return burgers
```

...`def`를 사용하는 대신:

```Python hl_lines="2"
# This is not asynchronous
def get_sequential_burgers(number: int):
    # Do some sequential stuff to create the burgers
    return burgers
```

`async def`를 사용하면, 파이썬은 해당 함수 내에서 `await` 표현에 주의해야한다는 사실과, 해당 함수의 실행을 "일시정지"⏸하고 다시 돌아오기 전까지 다른 작업을 수행🔀할 수 있다는 것을 알게됩니다.

- github.com/mitchellh/go-homedir: [v1.1.0](https://github.com/mitchellh/go-homedir/tree/v1.1.0)
- github.com/moby/sys/sequential: [v0.5.0](https://github.com/moby/sys/tree/sequential/v0.5.0)
- github.com/open-policy-agent/opa: [v0.67.1](https://github.com/open-policy-agent/opa/tree/v0.67.1)
- github.com/pelletier/go-toml: [v1.9.5](https://github.com/pelletier/go-toml/tree/v1.9.5)